Dr. Wendy Freedman, Chairman GMT, and Dr. Pat McCarthy, Director GMT, discuss the Giant Magellan Telescope's mirrors and the science that they will enable.

The Double Asteroid Redirection Test spacecraft will deliberately crash into a near-Earth asteroid to try and knock it off course. Scientists at NASA and Johns Hopkins Applied Physics Laboratory hope the DART mission could help us save Earth from a catastrophic impact.

How big can they get? What's the largest so far detected? Where does an 18 billion solar mass black hole hide? We've never seen them directly, yet we know they are there. Lurking within dense star clusters or wandering the dust lanes of the galaxy. Where they prey on stars. Or swallow planets whole....

Have you ever wondered why some telescopes are launched into space while others are built on remote mountain tops? What is actually the best for astronomy? Here we provide a ringside view of the fight for the elusive photons from deep space - is it a battle of the telescope giants?

Scott Kelly and his twin brother, Mark Kelly—also an astronaut—were the subjects of the study that sought to find out exactly what happens to the body after a year in space. Scott stayed on the International Space Station from March 2015 to March 2016, while Mark remained on Earth. This was the fina

Flying from Orlando, FL the crew recorded on video rare footage of Discovery's final launch as it embarks on STS-133.

John Glenn, NASA astronaut, U.S. Senator and the first American to orbit the planet, died on December 8, 2016 at the age of 95. Senator John Glenn, an american hero and role model for young americans who admire the work of NASA and would like to make a career of space exploration, was the first amer...

The spacecraft crashed into an asteroid the size of the Washington Monument. NASA’s DART spacecraft intentionally collided with an asteroid on Monday evening, in an attempt to alter the space rock’s trajectory. The mission tested technology that could help defend Earth against potential future aster

A private company has launched a spacecraft in a bold demonstration test for NASA. The Space Exploration Technologies rocket blasted off from Cape Canaveral on Wednesday morning. The Falcon 9 is carrying a capsule named Dragon. The company, known as SpaceX, hopes to place the capsule in orbit and th...

The goal of 3-D printing is to take this capability to microgravity for use on the International Space Station. In space, whatever astronauts have available on orbit is what they have to use -- but just like on Earth, parts break or get lost. When that happens, there's a wait for replacement parts, ...